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refactor(common): cleanup directive tests

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This commit is contained in:
Victor Berchet
2016-09-08 20:37:20 -07:00
parent c649a5c5ab
commit 82f30e09f0
7 changed files with 475 additions and 538 deletions
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101
modules/@angular/common/test/directives/ng_plural_spec.ts
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@ -8,11 +8,21 @@
import {CommonModule, NgLocalization} from '@angular/common';
import {Component, Injectable} from '@angular/core';
import {TestBed, async} from '@angular/core/testing';
import {ComponentFixture, TestBed, async} from '@angular/core/testing';
import {expect} from '@angular/platform-browser/testing/matchers';
export function main() {
describe('switch', () => {
let fixture: ComponentFixture<any>;
function getComponent(): TestComponent { return fixture.componentInstance; }
function detectChangesAndExpectText<T>(text: string): void {
fixture.detectChanges();
expect(fixture.nativeElement).toHaveText(text);
}
afterEach(() => { fixture = null; });
beforeEach(() => {
TestBed.configureTestingModule({
@ -23,104 +33,95 @@ export function main() {
});
it('should display the template according to the exact value', async(() => {
var template = '<div>' +
const template = '<div>' +
'<ul [ngPlural]="switchValue">' +
'<template ngPluralCase="=0"><li>you have no messages.</li></template>' +
'<template ngPluralCase="=1"><li>you have one message.</li></template>' +
'</ul></div>';
TestBed.overrideComponent(TestComponent, {set: {template: template}});
let fixture = TestBed.createComponent(TestComponent);
fixture.debugElement.componentInstance.switchValue = 0;
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('you have no messages.');
fixture = createTestComponent(template);
fixture.debugElement.componentInstance.switchValue = 1;
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('you have one message.');
getComponent().switchValue = 0;
detectChangesAndExpectText('you have no messages.');
getComponent().switchValue = 1;
detectChangesAndExpectText('you have one message.');
}));
// https://github.com/angular/angular/issues/9868
// https://github.com/angular/angular/issues/9882
it('should not throw when ngPluralCase contains expressions', async(() => {
var template = '<div>' +
const template = '<div>' +
'<ul [ngPlural]="switchValue">' +
'<template ngPluralCase="=0"><li>{{ switchValue }}</li></template>' +
'</ul></div>';
TestBed.overrideComponent(TestComponent, {set: {template: template}});
let fixture = TestBed.createComponent(TestComponent);
fixture.debugElement.componentInstance.switchValue = 0;
fixture = createTestComponent(template);
getComponent().switchValue = 0;
expect(() => fixture.detectChanges()).not.toThrow();
}));
it('should be applicable to <ng-container> elements', async(() => {
var template = '<div>' +
const template = '<div>' +
'<ng-container [ngPlural]="switchValue">' +
'<template ngPluralCase="=0">you have no messages.</template>' +
'<template ngPluralCase="=1">you have one message.</template>' +
'</ng-container></div>';
TestBed.overrideComponent(TestComponent, {set: {template: template}});
let fixture = TestBed.createComponent(TestComponent);
fixture.debugElement.componentInstance.switchValue = 0;
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('you have no messages.');
fixture = createTestComponent(template);
fixture.debugElement.componentInstance.switchValue = 1;
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('you have one message.');
getComponent().switchValue = 0;
detectChangesAndExpectText('you have no messages.');
getComponent().switchValue = 1;
detectChangesAndExpectText('you have one message.');
}));
it('should display the template according to the category', async(() => {
var template = '<div>' +
const template = '<div>' +
'<ul [ngPlural]="switchValue">' +
'<template ngPluralCase="few"><li>you have a few messages.</li></template>' +
'<template ngPluralCase="many"><li>you have many messages.</li></template>' +
'</ul></div>';
TestBed.overrideComponent(TestComponent, {set: {template: template}});
let fixture = TestBed.createComponent(TestComponent);
fixture.debugElement.componentInstance.switchValue = 2;
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('you have a few messages.');
fixture = createTestComponent(template);
fixture.debugElement.componentInstance.switchValue = 8;
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('you have many messages.');
getComponent().switchValue = 2;
detectChangesAndExpectText('you have a few messages.');
getComponent().switchValue = 8;
detectChangesAndExpectText('you have many messages.');
}));
it('should default to other when no matches are found', async(() => {
var template = '<div>' +
const template = '<div>' +
'<ul [ngPlural]="switchValue">' +
'<template ngPluralCase="few"><li>you have a few messages.</li></template>' +
'<template ngPluralCase="other"><li>default message.</li></template>' +
'</ul></div>';
TestBed.overrideComponent(TestComponent, {set: {template: template}});
let fixture = TestBed.createComponent(TestComponent);
fixture.debugElement.componentInstance.switchValue = 100;
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('default message.');
fixture = createTestComponent(template);
getComponent().switchValue = 100;
detectChangesAndExpectText('default message.');
}));
it('should prioritize value matches over category matches', async(() => {
var template = '<div>' +
const template = '<div>' +
'<ul [ngPlural]="switchValue">' +
'<template ngPluralCase="few"><li>you have a few messages.</li></template>' +
'<template ngPluralCase="=2">you have two messages.</template>' +
'</ul></div>';
TestBed.overrideComponent(TestComponent, {set: {template: template}});
let fixture = TestBed.createComponent(TestComponent);
fixture.debugElement.componentInstance.switchValue = 2;
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('you have two messages.');
fixture = createTestComponent(template);
fixture.debugElement.componentInstance.switchValue = 3;
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('you have a few messages.');
getComponent().switchValue = 2;
detectChangesAndExpectText('you have two messages.');
getComponent().switchValue = 3;
detectChangesAndExpectText('you have a few messages.');
}));
});
}
@ -131,6 +132,7 @@ class TestLocalization extends NgLocalization {
if (value > 1 && value < 4) {
return 'few';
}
if (value >= 4 && value < 10) {
return 'many';
}
@ -143,3 +145,8 @@ class TestLocalization extends NgLocalization {
class TestComponent {
switchValue: number = null;
}
function createTestComponent(template: string): ComponentFixture<TestComponent> {
return TestBed.overrideComponent(TestComponent, {set: {template: template}})
.createComponent(TestComponent);
}